High pressure transformation of graphene nanoplates: A Raman study

Lu, Shuangchen; Yao, Mingguang; Yang, Xingjin; Li, Quanjun; Xiao, Junping; Yao, Zhen; Jiang, Linhai; Liu, Ran; Liu, Bo; Chen, Shuanglong; Zou, Bo; Cui, Tian; Liu, Bingbing

doi:10.1016/j.cplett.2013.08.085

Cited by 48 publications

(23 citation statements)

References 29 publications

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“…S1 shows the Raman spectra of different carbon nanomaterials before and after thermal treatments. The D band and G band of these different carbon nanomaterials before the thermal annealing are consistent with previous studies [24,[26][27][28]. The I D /I G ratios of different carbon nanomaterials are listed in Table 1.…”

Section: Characterisation Of Carbon Samplessupporting

confidence: 75%

Nanocarbons in different structural dimensions (0–3D) for phenol adsorption and metal-free catalytic oxidation

Indrawirawan

Sun

Duan

et al. 2015

Applied Catalysis B: Environmental

290

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Section: Characterisation Of Carbon Samplessupporting

confidence: 75%

Nanocarbons in different structural dimensions (0–3D) for phenol adsorption and metal-free catalytic oxidation

Indrawirawan

Sun

Duan

et al. 2015

Applied Catalysis B: Environmental

290

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“…The G-band in micro-Raman spectrum originates from the sp 2 vibration of carbon atoms with E 2g symmetry within the planes. This is while D-band represents the disordered band of sp 3 hybrid [30,31]. As it is presented, the I D /I G ration shows the ordering.…”

Section: Structural and Microstructural Analysismentioning

confidence: 71%

A facile approach for obtaining NiFe2O4/C nanocomposites and their magnetic properties assessment

Bakhshi

Shokuhfar

2020

Preprint

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NiFe2O4/C nanocomposites were prepared using the two-step process, including reverse microemulsion followed by thermochemical vapour deposition (TCVD). Micelles made in the first step worked well and NiFe2O4 nanoparticles owing sizes smaller than 10 nanometer with narrow size distribution were obtained. Acetylene gas was used as a carbon source for deposition on the surface of NiFe2O4 nanoparticles. Coating applied for 1 and 2 h at 700°C and resulted in an enhancement of NiFe2O4 nanoparticle size to a level of 30 nanometer. Powder X-ray diffraction (PXRD) patterns revealed the spiel formation for all samples; however, the crystallinity of them has been increased as much as temperature rose to a level of coating. Fourier transform infrared spectroscopy (FT-IR) verified the metal-oxygen bonding linked to the octahedral and tetrahedral vibrations. Micro-Raman spectra for the coated samples were recorded as well, and the results confirmed the existence of ordered and disordered carbon-based materials in nanocomposites. It is noteworthy to mention that, in the sample with 2 h coating time, the defect densities were lower than the sample with an hour coating time. The vibration sample magnetometer (VSM) was also used to investigate the magnetic properties. The as-prepared sample behaves like a superparamagnetic matter; however, the coated ones behave like ferromagnetic materials. The saturation magnetization and coercivity of coated samples were lower than their bulk counterparts which was due to their smaller size.

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“…It is around 1550 cm -1 , and D-band which represents the irregular band of hybrid sp 3 is present in the vicinity 1300 cm -1 [43,44]. An important note is the presence of two weak peaks in the range of 400 to700 cm 1 .…”

Section: Discussionmentioning

confidence: 94%

Structural, magnetic and Raman study of CoFe2O4@C core–shell nanoparticles

Bakhshi

Shokuhfar

Afghahi

2015

Ceramics International

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High pressure transformation of graphene nanoplates: A Raman study

Cited by 48 publications

References 29 publications

Nanocarbons in different structural dimensions (0–3D) for phenol adsorption and metal-free catalytic oxidation

Nanocarbons in different structural dimensions (0–3D) for phenol adsorption and metal-free catalytic oxidation

A facile approach for obtaining NiFe2O4/C nanocomposites and their magnetic properties assessment

Structural, magnetic and Raman study of CoFe2O4@C core–shell nanoparticles

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High pressure transformation of graphene nanoplates: A Raman study

Cited by 48 publications

References 29 publications

Nanocarbons in different structural dimensions (0–3D) for phenol adsorption and metal-free catalytic oxidation

Nanocarbons in different structural dimensions (0–3D) for phenol adsorption and metal-free catalytic oxidation

A facile approach for obtaining NiFe­2O4/C nanocomposites and their magnetic properties assessment

Structural, magnetic and Raman study of CoFe2O4@C core–shell nanoparticles

Contact Info

Product

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A facile approach for obtaining NiFe2O4/C nanocomposites and their magnetic properties assessment